US8455147B2 - Hood interlock apparatus of industrial vehicle - Google Patents

Hood interlock apparatus of industrial vehicle Download PDF

Info

Publication number
US8455147B2
US8455147B2 US12/286,953 US28695308A US8455147B2 US 8455147 B2 US8455147 B2 US 8455147B2 US 28695308 A US28695308 A US 28695308A US 8455147 B2 US8455147 B2 US 8455147B2
Authority
US
United States
Prior art keywords
hood
fuel cell
power supply
opening
controller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US12/286,953
Other versions
US20090110984A1 (en
Inventor
Hideyuki Tanaka
Nobuo Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI reassignment KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WATANABE, NOBUO, TANAKA, HIDEYUKI
Publication of US20090110984A1 publication Critical patent/US20090110984A1/en
Application granted granted Critical
Publication of US8455147B2 publication Critical patent/US8455147B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04955—Shut-off or shut-down of fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04664—Failure or abnormal function
    • H01M8/04686—Failure or abnormal function of auxiliary devices, e.g. batteries, capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the present invention relates to a hood interlock apparatus of an industrial vehicle, and more particularly, to a hood interlock apparatus equipped in an industrial vehicle containing a fuel cell unit including a fuel cell within an accommodation chamber provided with an openable hood.
  • a fuel cell unit may be constructed by assembling, for example, a fuel cell, components for operating the fuel cell, and components for cooling the fuel cell.
  • the fuel cell unit may be located within an accommodation chamber formed below a driver's seat.
  • a hood is mounted in a manner making it freely openable at the top of the accommodation chamber so that maintenance operation for the components located within the accommodation chamber can be performed by opening the hood.
  • the fuel cell in the fuel cell unit and the components to which power is supplied from the fuel cell can be at high voltage. Therefore, a structure for preventing contact with such high-voltage parts is required when the hood is open while the fuel cell is operating.
  • Japanese Patent Application Laid Open No. 2005-143200 discloses an interlock apparatus for shutting off high voltage of an inverter.
  • a cover is fixed to a case accommodating the inverter by means of a plurality of bolts and a sensor is mounted thereto for detecting opening/closing of the cover.
  • the interlock apparatus shuts off power supply to the inverter when the sensor detects that the cover is open in order to shut off the high voltage.
  • Japanese Patent Application Laid Open No. 2006-100480 and Japanese Patent Application Laid Open No. 2002-367666 also disclose related matters.
  • the present invention has been made to eliminate the above problem, and therefore an object of the present invention is to provide a hood interlock apparatus for industrial vehicles which can prevent contact with high-voltage parts when the hood is open, whilst having a simple structure.
  • a hood interlock apparatus for an industrial vehicle is installed in an industrial vehicle accommodating a fuel cell unit including a fuel cell within an accommodation chamber provided with an openable hood, comprising:
  • a switching contact located on a power supply line for supplying power from the fuel cell of the fuel cell unit;
  • an opening/closing detection apparatus for detecting opening/closing of the hood
  • a controller which opens the switching contact, when the opening/closing detection apparatus detects that the hood is open, so that power supply from the fuel cell included in the fuel cell unit is shut off.
  • FIG. 1 is a diagram showing the construction of a fuel-cell type forklift equipped with a hood interlock apparatus according to a first embodiment of the present invention
  • FIG. 2 is a block diagram showing the hood interlock apparatus when the hood is closed according to the first embodiment
  • FIG. 3 is a block diagram showing the hood interlock apparatus when the hood is open according to the first embodiment.
  • FIG. 4 is a block diagram showing the hood interlock apparatus when the hood is open according to a second embodiment.
  • FIG. 1 shows the construction of a fuel-cell type forklift equipped with a hood interlock apparatus according to a first embodiment of the present invention.
  • a fuel cell unit U shown by dotted lines, is accommodated within an accommodation chamber formed below a driver's seat 1 .
  • a top portion of the accommodation chamber is closed by being covered with an openable hood 2 .
  • the driver's seat 1 is fixed to a top surface of the hood 2 .
  • the hood 2 and the driver's seat 1 are rotatable by means of a hinge (not shown) located at a rear end of the hood 2 .
  • a limit switch 3 is mounted to the hinge of the hood 2 as an opening/closing detection apparatus for detecting opening/closing of the hood 2 .
  • the fuel cell unit U has a box-like casing body 4 .
  • a fuel cell (explained hereafter) which functions as a driving source for the forklift is accommodated within the casing body 4 .
  • components for operating the fuel cell e.g. a hydrogen tank, a regulator for supplying hydrogen, an air compressor, a humidifier, a capacitor, a battery, etc.
  • components for cooling the fuel cell e.g. a cooling water circulation pump, a radiator, a fan, a fan motor, etc., are also accommodated within the casing body 4 .
  • the hood interlock apparatus has a controller 6 .
  • the controller 6 Connected to the controller 6 is an end portion of the limit switch 3 which detects opening/closing of the hood 2 .
  • the other end portion of the limit switch 3 is grounded.
  • power supply relay 7 is connected to the controller 6 .
  • Fuel cell 8 of the fuel cell unit U is connected to various power-consuming components (not shown), e.g. a driving motor for the vehicle, a load motor, a power-steering apparatus, an air compressor, an air conditioning apparatus, etc., via power supply line L.
  • Switching contact 7 a of the power supply relay 7 is located on the power supply line L.
  • the limit switch 3 When the hood 2 is closed, the limit switch 3 is on and the controller 6 maintains the switching contact 7 a of the power supply relay 7 in a closed state so that power supply from the fuel cell 8 to the various power-consuming components is allowed.
  • the controller 6 opens the switching contact 7 a of the power supply relay 7 so that the power supply from the fuel cell 8 to the various power-consuming components is shut off.
  • a cover and a sensor or the like for detecting opening/closing of the cover for each component which may possibly have high voltage when the fuel cell 8 is operating.
  • a hood interlock apparatus which is small and simply constructed but ensures high safety can be realized.
  • a hood interlock apparatus according to a second embodiment of the present invention is explained with reference to FIG. 4 .
  • the hood interlock apparatus according to the second embodiment not only shuts off the power supply from the fuel cell 8 but also shuts off hydrogen supply to the fuel cell 8 when the hood 2 is opened. That is, supply pipe 10 is connected to the fuel cell 8 for supplying hydrogen from hydrogen tank 9 and a valve 11 is located along the supply pipe 10 . The valve 11 is electrically connected to the controller 6 .
  • the limit switch 3 When the hood 2 is closed, the limit switch 3 is on and the controller 6 maintains the switching contact 7 a of the power supply relay 7 in a closed state and maintains the valve 11 of the supply pipe 10 in an open state. By doing so, the controller 6 allows hydrogen supply to the fuel cell 8 and power supply from the fuel cell 8 to the various power-consuming components.
  • the controller 6 opens the switching contact 7 a of the power supply relay 7 so that the power supply from the fuel cell 8 to the various power-consuming components is shut off, and at the same time the controller 6 also closes the valve 11 so that the hydrogen supply to the fuel cell 8 is shut off.
  • the hydrogen supply to the fuel cell 8 is also shut off when the hood 2 is opened. Therefore, the fuel cell 8 becomes unable to generate electrical power, and even in the case of opening the hood 2 due to some trouble of the fuel cell, emission of highly concentrated hydrogen is prevented. Thus, safety is further enhanced.
  • the limit switch 3 is mounted to the hinge of the hood 2 .
  • an opening/closing detection apparatus such as a limit switch may be mounted to a lock member of the hood 2 , a damper of the hood 2 , or the hood 2 itself, in order to detect opening/closing of the hood 2 .
  • hood interlock apparatus can be applied not only to forklifts but also to various industrial vehicles mounted with a fuel cell unit U as a driving source including a fuel cell within an accommodation chamber provided with an openable hood.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A limit switch for detecting opening/closing of a hood is connected to a controller. A power supply relay is also connected to the controller. A switching contact of the relay is located on power supply line for supplying power supply from a fuel cell. When the hood is closed, the limit switch is on and the controller maintains the switching contact in a closed state so that power supply from the fuel cell to various power-consuming components is allowed. On the other hand, when the hood is opened, the limit switch is turned off. In response to this, the controller opens the switching contact so that the power supply from the fuel cell to the various power-consuming components is shut off.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hood interlock apparatus of an industrial vehicle, and more particularly, to a hood interlock apparatus equipped in an industrial vehicle containing a fuel cell unit including a fuel cell within an accommodation chamber provided with an openable hood.
2. Description of the Related Art
Recently, industrial vehicles such as fuel-cell type forklifts equipped with fuel cells as driving sources have been developed. In these industrial vehicles, a fuel cell unit may be constructed by assembling, for example, a fuel cell, components for operating the fuel cell, and components for cooling the fuel cell. The fuel cell unit may be located within an accommodation chamber formed below a driver's seat.
A hood is mounted in a manner making it freely openable at the top of the accommodation chamber so that maintenance operation for the components located within the accommodation chamber can be performed by opening the hood.
However, when the fuel cell is operating, the fuel cell in the fuel cell unit and the components to which power is supplied from the fuel cell can be at high voltage. Therefore, a structure for preventing contact with such high-voltage parts is required when the hood is open while the fuel cell is operating.
For example, Japanese Patent Application Laid Open No. 2005-143200 discloses an interlock apparatus for shutting off high voltage of an inverter. A cover is fixed to a case accommodating the inverter by means of a plurality of bolts and a sensor is mounted thereto for detecting opening/closing of the cover. The interlock apparatus shuts off power supply to the inverter when the sensor detects that the cover is open in order to shut off the high voltage. Japanese Patent Application Laid Open No. 2006-100480 and Japanese Patent Application Laid Open No. 2002-367666 also disclose related matters.
Contact with the high-voltage parts can be prevented, even if the hood is open while the fuel cell is operating, by applying the interlock apparatus as disclosed in the above Japanese Patent Application Laid Open No. 2005-143200. This can be achieved by providing a cover and a sensor or the like for detecting opening/closing of the cover to each component which may possibly have high voltage while the fuel cell is operating.
However, there has been a problem in that, if a cover and a sensor or the like for detecting opening/closing of the cover are provided to each component which may possibly have high voltage while the fuel cell is operating as described above, the number of components increases and the construction becomes complicated.
The present invention has been made to eliminate the above problem, and therefore an object of the present invention is to provide a hood interlock apparatus for industrial vehicles which can prevent contact with high-voltage parts when the hood is open, whilst having a simple structure.
SUMMARY OF THE INVENTION
A hood interlock apparatus for an industrial vehicle is installed in an industrial vehicle accommodating a fuel cell unit including a fuel cell within an accommodation chamber provided with an openable hood, comprising:
a switching contact located on a power supply line for supplying power from the fuel cell of the fuel cell unit;
an opening/closing detection apparatus for detecting opening/closing of the hood; and
a controller which opens the switching contact, when the opening/closing detection apparatus detects that the hood is open, so that power supply from the fuel cell included in the fuel cell unit is shut off.
According to the present invention, whilst having a simple structure, contact with the high-voltage parts can be prevented.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagram showing the construction of a fuel-cell type forklift equipped with a hood interlock apparatus according to a first embodiment of the present invention;
FIG. 2 is a block diagram showing the hood interlock apparatus when the hood is closed according to the first embodiment;
FIG. 3 is a block diagram showing the hood interlock apparatus when the hood is open according to the first embodiment; and
FIG. 4 is a block diagram showing the hood interlock apparatus when the hood is open according to a second embodiment.
 DESCRIPTION OF THE PREFERRED EMBODIMENTS
Hereinafter, a description will be given of embodiments of the present invention with reference to the accompanying drawings.
First Embodiment
FIG. 1 shows the construction of a fuel-cell type forklift equipped with a hood interlock apparatus according to a first embodiment of the present invention. A fuel cell unit U, shown by dotted lines, is accommodated within an accommodation chamber formed below a driver's seat 1. A top portion of the accommodation chamber is closed by being covered with an openable hood 2. The driver's seat 1 is fixed to a top surface of the hood 2. The hood 2 and the driver's seat 1 are rotatable by means of a hinge (not shown) located at a rear end of the hood 2. Maintenance operation or the like for components accommodated within the accommodation chamber can be performed by rotating and opening the hood 2 together with the driver's seat 1 to reach an open position A shown by two-dot chain lines. Further, a limit switch 3 is mounted to the hinge of the hood 2 as an opening/closing detection apparatus for detecting opening/closing of the hood 2.
The fuel cell unit U has a box-like casing body 4. A fuel cell (explained hereafter) which functions as a driving source for the forklift is accommodated within the casing body 4. Also, although not shown in the figure, components for operating the fuel cell, e.g. a hydrogen tank, a regulator for supplying hydrogen, an air compressor, a humidifier, a capacitor, a battery, etc., are accommodated within the casing body 4. Further, components for cooling the fuel cell, e.g. a cooling water circulation pump, a radiator, a fan, a fan motor, etc., are also accommodated within the casing body 4.
As shown in FIG. 2, the hood interlock apparatus has a controller 6. Connected to the controller 6 is an end portion of the limit switch 3 which detects opening/closing of the hood 2. The other end portion of the limit switch 3 is grounded. Also, power supply relay 7 is connected to the controller 6.
Fuel cell 8 of the fuel cell unit U is connected to various power-consuming components (not shown), e.g. a driving motor for the vehicle, a load motor, a power-steering apparatus, an air compressor, an air conditioning apparatus, etc., via power supply line L. Switching contact 7 a of the power supply relay 7 is located on the power supply line L.
Next, an operation of the hood interlock apparatus according to the first embodiment is described below. When the hood 2 is closed, the limit switch 3 is on and the controller 6 maintains the switching contact 7 a of the power supply relay 7 in a closed state so that power supply from the fuel cell 8 to the various power-consuming components is allowed.
On the other hand, when the hood 2 is opened by being rotated toward the open position A together with the driver's seat 1, the limit switch 3 is turned off as shown in FIG. 3. In response to this, the controller 6 opens the switching contact 7 a of the power supply relay 7 so that the power supply from the fuel cell 8 to the various power-consuming components is shut off.
In this manner, when the hood 2 is open, the power supply from the fuel cell 8 to the various power-consuming components is shut off so that high voltage is avoided in electrodes of the fuel cell 8 and in the various power-consuming components. Therefore, contact with the high-voltage parts within the accommodation chamber is prevented even if the hood 2 is opened while the fuel cell 8 is operating. As a result, maintenance operation such as supplying cooling water to a radiator of the fuel cell unit U or exchanging filters of an air cleaner can be performed safely.
Accordingly, it is not necessary to provide a cover and a sensor or the like for detecting opening/closing of the cover for each component which may possibly have high voltage when the fuel cell 8 is operating. Thus, a hood interlock apparatus which is small and simply constructed but ensures high safety can be realized.
Second Embodiment
Next, a hood interlock apparatus according to a second embodiment of the present invention is explained with reference to FIG. 4. The hood interlock apparatus according to the second embodiment not only shuts off the power supply from the fuel cell 8 but also shuts off hydrogen supply to the fuel cell 8 when the hood 2 is opened. That is, supply pipe 10 is connected to the fuel cell 8 for supplying hydrogen from hydrogen tank 9 and a valve 11 is located along the supply pipe 10. The valve 11 is electrically connected to the controller 6.
When the hood 2 is closed, the limit switch 3 is on and the controller 6 maintains the switching contact 7 a of the power supply relay 7 in a closed state and maintains the valve 11 of the supply pipe 10 in an open state. By doing so, the controller 6 allows hydrogen supply to the fuel cell 8 and power supply from the fuel cell 8 to the various power-consuming components.
On the other hand, when the hood 2 is opened by being rotated toward the open position A together with the driver's seat 1, the limit switch 3 is turned off as shown in FIG. 4. In response to this, the controller 6 opens the switching contact 7 a of the power supply relay 7 so that the power supply from the fuel cell 8 to the various power-consuming components is shut off, and at the same time the controller 6 also closes the valve 11 so that the hydrogen supply to the fuel cell 8 is shut off.
In this manner, when the hood 2 is open, high voltage is avoided in the fuel cell 8 and in the various power-consuming components. Therefore, in a manner similar to that of the above-described first embodiment, contact with the high-voltage parts within the accommodation chamber is prevented even if the hood 2 is opened while the fuel cell 8 is operating.
In addition, in the second embodiment, the hydrogen supply to the fuel cell 8 is also shut off when the hood 2 is opened. Therefore, the fuel cell 8 becomes unable to generate electrical power, and even in the case of opening the hood 2 due to some trouble of the fuel cell, emission of highly concentrated hydrogen is prevented. Thus, safety is further enhanced.
In the first and second embodiments described above, the limit switch 3 is mounted to the hinge of the hood 2. As alternative constructions, an opening/closing detection apparatus such as a limit switch may be mounted to a lock member of the hood 2, a damper of the hood 2, or the hood 2 itself, in order to detect opening/closing of the hood 2.
It should be noted that the hood interlock apparatus according to the present invention can be applied not only to forklifts but also to various industrial vehicles mounted with a fuel cell unit U as a driving source including a fuel cell within an accommodation chamber provided with an openable hood.

Claims (4)

What is claimed is:
1. A hood interlock apparatus installed in an industrial vehicle accommodating a fuel cell unit including a fuel cell within an accommodation chamber provided with an openable hood, comprising:
a switching contact located on a power supply line for supplying power from the fuel cell of the fuel cell unit;
a valve mounted to a supply pipe for supplying hydrogen to the fuel cell;
an opening/closing detection apparatus for detecting opening/closing of the hood; and
a controller which opens the switching contact, when the opening/closing detection apparatus detects that the hood is open, so that power supply from the fuel cell included in the fuel cell unit is shut off; wherein a controller closes the valve, when the opening/closing detection apparatus detects that the hood is open, so that hydrogen supply to the fuel cell is shut off.
2. The hood interlock apparatus according to claim 1, wherein:
a valve is mounted to a supply pipe for supplying hydrogen to the fuel cell; and
the controller closes the valve, when the opening/closing detection apparatus detects that the hood is open, so that hydrogen supply to the fuel cell is shut off.
3. The hood interlock apparatus according to claim 1, wherein the accommodation chamber includes a part which has high voltage when the fuel cell is operating.
4. The hood interlock apparatus according to claim 1, wherein a driver's seat is fixed to a top surface of the hood.
US12/286,953 2007-10-03 2008-10-02 Hood interlock apparatus of industrial vehicle Expired - Fee Related US8455147B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007260160A JP2009090685A (en) 2007-10-03 2007-10-03 Hood interlock apparatus of industrial vehicle
JP2007-260160 2007-10-03

Publications (2)

Publication Number Publication Date
US20090110984A1 US20090110984A1 (en) 2009-04-30
US8455147B2 true US8455147B2 (en) 2013-06-04

Family

ID=40515022

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/286,953 Expired - Fee Related US8455147B2 (en) 2007-10-03 2008-10-02 Hood interlock apparatus of industrial vehicle

Country Status (3)

Country Link
US (1) US8455147B2 (en)
JP (1) JP2009090685A (en)
CA (1) CA2640310C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150056529A1 (en) * 2012-09-28 2015-02-26 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Forklift Fuel Cell Supply System
US20150295401A1 (en) * 2012-09-28 2015-10-15 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Compact Type Fuel Cell Supply System
US9216661B2 (en) * 2012-09-28 2015-12-22 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Fuel cell mixed power supply energy management method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2741415B1 (en) 2011-08-03 2017-05-03 Toyota Jidosha Kabushiki Kaisha Electric motor drive system
JP5882133B2 (en) * 2012-05-16 2016-03-09 株式会社豊田自動織機 Fuel cell industrial vehicle
JP2014069600A (en) * 2012-09-27 2014-04-21 Mitsubishi Motors Corp On-vehicle device controller
CN110356238B (en) * 2019-07-26 2021-03-26 浙江博千科技有限公司 Circuit fault detection method for new energy motor controller
CN112389200B (en) * 2019-07-31 2022-06-14 比亚迪股份有限公司 Detection circuit and method for contactor sintering and vehicle

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0565701U (en) 1992-02-20 1993-08-31 日野自動車工業株式会社 Safety device for inspection door
US20020189873A1 (en) * 2001-06-15 2002-12-19 Toyota Jidosha Kabushiki Kaisha On-vehicle structure of fuel cell system
JP2002367666A (en) 2001-06-11 2002-12-20 Toyota Motor Corp Fuel cell module and fuel cell automobile
US20040129466A1 (en) * 2002-09-13 2004-07-08 Torsten Leifert Industrial truck
JP2004349110A (en) 2003-05-22 2004-12-09 Toyota Motor Corp Control device and control method of vehicular fuel cell power generation system
US20050032404A1 (en) * 2002-09-18 2005-02-10 Toyota Jidosha Kabushiki Kaisha High-voltage equipment housing and high-voltage connector
JP2005143200A (en) 2003-11-06 2005-06-02 Toyota Motor Corp High voltage apparatus containing box
JP2005294215A (en) 2004-04-05 2005-10-20 Toyota Motor Corp Interlock device
JP2006100480A (en) 2004-09-29 2006-04-13 Hitachi High-Tech Instruments Co Ltd Electronic component mounting apparatus
US20070082265A1 (en) * 2003-12-05 2007-04-12 Nissan Motor Co., Ltd. Positive electrode material for non-aqueous electrolyte lithium ion battery and battery using the same
JP2007242434A (en) 2006-03-09 2007-09-20 Toyota Industries Corp Industrial vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03190533A (en) * 1989-12-20 1991-08-20 Hitachi Ltd Power supply system in automobile
JP4271347B2 (en) * 2000-06-12 2009-06-03 本田技研工業株式会社 Fuel shut-off device for fuel cell vehicle
JP2006129589A (en) * 2004-10-28 2006-05-18 Toyota Motor Corp Electric automobile

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0565701U (en) 1992-02-20 1993-08-31 日野自動車工業株式会社 Safety device for inspection door
JP2002367666A (en) 2001-06-11 2002-12-20 Toyota Motor Corp Fuel cell module and fuel cell automobile
US20020189873A1 (en) * 2001-06-15 2002-12-19 Toyota Jidosha Kabushiki Kaisha On-vehicle structure of fuel cell system
US20040129466A1 (en) * 2002-09-13 2004-07-08 Torsten Leifert Industrial truck
US20050032404A1 (en) * 2002-09-18 2005-02-10 Toyota Jidosha Kabushiki Kaisha High-voltage equipment housing and high-voltage connector
JP2004349110A (en) 2003-05-22 2004-12-09 Toyota Motor Corp Control device and control method of vehicular fuel cell power generation system
JP2005143200A (en) 2003-11-06 2005-06-02 Toyota Motor Corp High voltage apparatus containing box
US20070082265A1 (en) * 2003-12-05 2007-04-12 Nissan Motor Co., Ltd. Positive electrode material for non-aqueous electrolyte lithium ion battery and battery using the same
JP2005294215A (en) 2004-04-05 2005-10-20 Toyota Motor Corp Interlock device
JP2006100480A (en) 2004-09-29 2006-04-13 Hitachi High-Tech Instruments Co Ltd Electronic component mounting apparatus
JP2007242434A (en) 2006-03-09 2007-09-20 Toyota Industries Corp Industrial vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Communication from counterpart Japanese Application No. 2007-26016 (dated Mar. 13, 2012).

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150056529A1 (en) * 2012-09-28 2015-02-26 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Forklift Fuel Cell Supply System
US20150295401A1 (en) * 2012-09-28 2015-10-15 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Compact Type Fuel Cell Supply System
US9216661B2 (en) * 2012-09-28 2015-12-22 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Fuel cell mixed power supply energy management method
US9356445B2 (en) * 2012-09-28 2016-05-31 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Compact type fuel cell supply system

Also Published As

Publication number Publication date
US20090110984A1 (en) 2009-04-30
CA2640310A1 (en) 2009-04-03
JP2009090685A (en) 2009-04-30
CA2640310C (en) 2012-12-18

Similar Documents

Publication Publication Date Title
US8455147B2 (en) Hood interlock apparatus of industrial vehicle
JP5045340B2 (en) Electric car
JP3932185B2 (en) Fuel cell mounted electric vehicle and fuel cell system box
JP5683408B2 (en) Automobile having vehicle drive motor
US20080060860A1 (en) Hybrid industrial vehicle
JP5565234B2 (en) Vehicle battery exhaust system
WO2010137149A1 (en) Fuel cell system, and vehicle
JP5237697B2 (en) Fuel cell vehicle
JP2007043846A (en) Moving body
JP2018092815A (en) Fuel cell ship
EP1827885A1 (en) Fuel cell system for vehicle and vehicle
US8875531B2 (en) Fuel cell vehicle
US20170246965A1 (en) Fuel cell vehicle and control method for fuel cell vehicle
JP6097152B2 (en) Electric vehicle
US20200238839A1 (en) Open cabin vehicle
JP2014086171A (en) Fuel cell system
JP2012054032A (en) Battery temperature control apparatus
JP2009295464A (en) Mobile unit mounted with fuel cell, and its control method
JP2006073466A (en) Battery pack device for electric automobile
JP2014076717A (en) Electric power supply system
JP2019146368A (en) Fuel cell vehicle
KR20040005144A (en) Air supply apparatus for fuel cell
JP2006207654A (en) Fuel supply system
JP2014051210A (en) External power supply structure of electric vehicle
JP2002120995A (en) Charger for battery-powered forklift

Legal Events

Date Code Title Description
AS Assignment

Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TANAKA, HIDEYUKI;WATANABE, NOBUO;REEL/FRAME:022091/0625;SIGNING DATES FROM 20081001 TO 20081021

Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TANAKA, HIDEYUKI;WATANABE, NOBUO;SIGNING DATES FROM 20081001 TO 20081021;REEL/FRAME:022091/0625

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

LAPS Lapse for failure to pay maintenance fees

Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20210604